New Guinea village water supplies: a comparison of faecal pollution levels in wells and traditional supplies.
D003140:Communicable Disease Control; D004926:Escherichia coli / Q000302:isolation & purification; D006801:Humans; D009512:New Guinea; D013291:Streptococcus / Q000302:isolation & purification; D014871:Water Microbiology; D014876:Water Pollution